{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["cell line", "DNA", "protein", "cell type", "RNA"], "input": "Transcription of a human U2 small nuclear RNA(snRNA)-encoding gene in HeLa cells requires a distal enhancer element , which is composed of one octamer motif ( Oct ) and three Sp 1-binding sites ."}
{"cell line": ["HeLa cells"], "DNA": ["U2 small nuclear RNA(snRNA)-encoding gene", "distal enhancer element", "octamer motif", "Oct", "Sp 1-binding sites"], "protein": [], "cell type": [], "RNA": []}